Font issues in Landscape HTML version

Hi Community,

I am trying to publish my unresponsive HTML website in landscape version. The issue is the fonts that are suppposed to be smaller become very small when switched to lanscape mode. Is there anyway we can edit the text published via captivate. 

PS: I have tried using jQuery but the text is an aria-label and force styling using !important also doesn't seem to affect the font size.

In the attached screenshot I want to increase the size of the text below the orange text.